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Electronics Repair (sci.electronics.repair) Discussion of repairing electronic equipment. Topics include requests for assistance, where to obtain servicing information and parts, techniques for diagnosis and repair, and annecdotes about success, failures and problems. |
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25" GE TV model:25GT539,chassis:CTC187AB
run stby
pin 1 -40.1 -27.8 pin 2 -33.3 -22.7 pin 3 hgnd pin 4 -1.54 2.01 pin 5 1.32 pin 6 1.45 1.31 pin 7 -.43 pin 8 0.12 pin 9 0.12 pin 10 nc pin 11 156.5 169.2 pin 12 156.5 169.2 "Sidney" wrote in message om... 25" GE stereo TV model:25GT539,chassis:CTC187AB,year:Oct 97,no power,the power supply does not chirp,pins 11 & 12 of U4101V=STK730-130 have an output,I would like to know the proper standby voltages for U4101V=STK730-130. I checked R4104=1.5 M ohms,1/4 watt supplies start up voltage to U4101V but it was fine,I checked the Q4401=2SD1878 and of course T4301I=horizontal driver transformer for cracked solder. I resoldered tuner which had many cracked grounds,I also checked th EEPROM for activity like VCC,clock and data but all were missing because I assume that the problem lies with a defective U4101V=STK730-130,I need the standby voltages for it. Thanks in advance. |
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